Radiator.



` RADIATOR. APlLIOATION FILED AUG. 7, 1912.

Patented Apr. 7, `1914.

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R. H. HATPIELD.

` RADIATOR. APPLICATION FILED AUG. 7, 1912.

wuunll Patented Apr, 7, 191.4.

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ATTORNEYS RICHARD H. HAIEFIIEILI),4 `OF NEW YORK, N. Y.

RADIATOR.

Specication of Letters Patent.

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applicationmeaaugustv,1912. serial No. 713,920,

To all lv/tom it may concern i Be it known that I, RICHARD H. HAT- rmLn,a citizen of the United States, and a resident of the city of New York,borough of Brooklyn, in the county ofKings and State ofY New York, haveinvented-a new and Improved Radiator, of whichthe following is a full,clear, and exact description.

My invention relates to an improvement in radiators, preferably ofthetype designed to remove the heat from the cooling water of the engineof an automobile or other vehicle, and the primary object thereof is toproduce a radiator of this type which will be of simple and practicalconstruction, and at the same time operate with the highest possibleefliciency for the purpose in view.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which the same characters of reference indicatethe 'same parts in all the views.

Figure 1 is a rear elevation of the radiator; Fig. 2 is a horizontalsection on the line 2-2 of Fig. 1; Fig. 3 is a plan view of one of thecooling plates through which the radiating tubes pass; Fig.. 4 is aperspective view, showing such a plate with one of the radiating tubespassing through it; and Fig. 5 is a vertical sectional View on the line5 of Fig. 1, showing one compartment cut ofil from the inlet pipe.

My radiator is indicated as a whole by the numeral 1, and it is providedwith a hollow top 2 anda hollow bottom 3, the water entering at the topand passing downward through the radiator tubes which connect the hollowtop and bottom together, and from the bottom back tothe water tank ofthe engine in the usual way.

The top 2 is provided with a number ofY compartments 4, separated bylongitudinal partitions 5, and the bottom is provided with compartments6, separated by longitudinall partitions 7. Each of the uppercompartments is provided with an inlet opening surrounded by a pipeflange 8,'and each of the lower compartments is provided with an outletopening surrounded by a pipe flange 9. The outlet openings at the bottomcommunicate with a headerp10 connected toa conduit 11, and the outletopenings at the top communicate'with a similar header or conduit, bothheaders having flanges to enable them to be bolted to the flanges 8 and9. In case of damage to one or more pairs of upperor lower compartments,these headers are dlsconnected from the correspondingV flanges 8 and 9,and 'a plate 12 having aperl tures near Vits circumference to permit the'fastening bolts to pass `is inserted between the flanges 8 and 9 andthe corresponding flanges on the headers, as shown in Fig. 5. When thefastening bolts are again screwed in the particular upper and lowercompartments included in the damaged part of the radiator will be' cutoff entirely. In this way, should a collision 0r other accident occurwhich damages part of the radiator, the' upper and lower compartmentsadjacent the damaged portion can be put out of commission. I-Ience, vifone, or even two, of the upper and corresponding lower compartmentsofthe radiator should happen to be out of commission, the third couldstill be kept in operation and a suiicient cooling e'ect obtained withthis remaining compartment to enable the damaged car to reach the nextyrepair station.

The bottom of the upper part 2, shown at 18, and the top ofthe lower art3, shown at 14, are connected by a num er of radiator tubes 1'5. Thetubes 15 are disposed obliquely, or in lines inclined to the axis of theradiator. This is accomplished by arranging the tubes in alined series,the members of the adjacent series being transversely interspaced. Bythus arranging the members of the parallel series, and by formingelongated concave surfaces at the forward sides of each tube, provisionis made for the delivery of air by each tube and from the concavesurface of each tube to the laterallyadjacent tubes and to the pocketsformed by the concave surfaces of said adjacent tubes. These tubes areof the shape shown in Fig. 2, and may be described as being triangularin cross section with transversely concaved sides. They are arranged insufcient number to conduct the`water-or other cooling Huid from the top2 to the bottom 3, and as the sides ofthese tubes are exposed to the owof air through the radiator structure between the top 2 and bottom 3,the fluid which passes through these tubes gives up the heat containedtherein. The concaved sides of the tubes 15 will permit the expansion ofthe fluid, and if any of the fluid should freeze .in these tubes, withresultant increase in volume which takes place for example when waterturns to ice, the bursting of the tubes will be avoided. j

Between the top 2 and bottom 3 of the radiator is placed a number ofhorizontal cooling plates 16. These plates are spaced apart and haveopenings through which the tubes 15 pass. These openings are formed bymaking a central aperture 17 from which extend radiating cuts 18, thesecuts being approximately 120 apart. Bisecting the portion between eachtwo of these cuts 18 are other radiating cuts 19 terminating at theirouter ends in apertures 20, and intersected by cross cut-s 21 just shortof the apertures 20. The portions of the plate 16 on eachv side of thecuts 19 are then bent, the section between the apertures 20 and thecross cuts 21 forming turned-over lugs 22, and the portion between eachcross out 21 and the adjacent radiating cut 18 forming a turned-over lug23. This will form a plurality of three-point openings through theplates 16, corresponding in shape to the outer contour of the tubes 15,and the lugs 22 and 23 will engage the sidesof the tubes with sufiicientfirmness to hold the plates in position. These plates will also have`lugs 22 and 23 soldered to the sides of the tubes 15, if desired. Eachof the pipe flanges 8 and 9 may of course have suitable packing appliedto the outer faces of the same when the sections uniting these pipeianges to the headers 10 are secured in position.

The utility and advantage of my radiator willl be 'apparent from theabove description.

If the automobile should meet with a collision, resulting in damage toone, or even two, of the compartments in the top4 and bottom, thesecompartments can be shut oit and the third compartment kept in use. Thisthird compartment will cool enough of the water from the jacket of theengine to enable the car to reach a repair point, and thus the danger ofhaving the entire radiator put out of commission by injury to a partthereof will be entirely eliminated. Further, the shape of the tubes 15will prevent bursting in case any of the water should freeze inside ofthe same, and the horizontal cooling plate 16 will increase theefficiency of the radiator by conducting heat away from the metal wallsof the tubes and thus expose a larger area of metallic surface to theaction of the air which 'blows through the radiator when the car is inmotion. The

conductive action of these plates 16 is increased by the lugs 22 and 23,which bring a larger portion of the body of each plate into contact withthe outer surfaces of all of the tubes, and the utmost efficiency isthus obtained. Furthermore, the particular method of forming openingsthrough the plate 16 to give passage to the tubes 15 pro- Vides aresilient engagement of the plates with the tubes, and this resilientengagelnentkowing to the 'frictional surface and bearing of the lugs onthe outer surface of the tubes 15, might even be sufficient to hold theplates in position in the radiator under ordinary circumstances. Iprefer, however, to solder the plates to the tubes so as to make doublysure that the plates will at all times retain their proper position withrespect to one another.

It will 'be seen from an inspection of Figs. 2, 8 and 4 thatincross-sect-ion the tubes 15 have substantially the shape of a trefoil;that is, this cross sectional conguration presents three points orcorners joined by transversely concaved sides. This threepointed shapeis especially adapted for cooling purposes because of its etiiciency indeflecting the air from the sides of the'tubes in front against thesides of the tubes located more to the rear of the radiator, andthe fullcooling action of air which passes through the radiator is thusobtained.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

lA radiator, having a plurality of watercirculating tubes arranged inparallel series, said series being disposed in lines perpendicular tothe face of the radiator, said tubes having transversely concaved wallsections disposed lengthwise thereof, the tubes of the adjacent seriesbeing arranged in staggered relation to pocket and deflect the airpassing between said series, for delivery thereot1 by each tube of oneseries to the concave sections of the tubes of the adjacent series.

In testimony whereof I have signed my name to this speciiication in thepresence of two subscribing witnesses. v

RICHARD I-I. HATFIELD.

Witnesses:

WILLIAM F, NICKEL, vELmNoR M. HATFIELD.

